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. 2022 Jan 28;2022(1):CD013334. doi: 10.1002/14651858.CD013334.pub2

5. Trials without usable data for outcomes in Summary of findings tables in Comparisons 3 and 4.

Outcomes included in Summary of Findings tables Included studies that are believed to have measured the outcome, but did not report it in a usable format
Change in body weight (kg) at three to < 12 months Hockaday 1978: mean change and range reported, but no variance or exact P values reported; authors not contacted due to publication date of study
Change in body weight (kg) at ≥ 12 months Hockaday 1978: mean change and range reported, but no variance or exact P values reported; authors not contacted due to publication date of study
Number of participants per group with weight loss of at least 5% at ≥ 12 months None
Cardiovascular mortality at ≥ 12 months None
Change in HbA1c (%) at ≥ 12 months Samaha 2003: mean change and standard deviation reported, but numbers of participants per trial arm not reported; authors unresponsive
Change in DBP (mmHg) at ≥ 12 months None
Change in LDL cholesterol (mmol/L) at ≥ 12 months None
Constipation at three to < 12 months Saslow 2017a: Data captured using an adaptation of the Health Symptom Checklist at 3 months; reported that participants in low‐carbohydrate diet group experienced increased constipation (mean change of 0.4, P = 0.03); no data reported for balanced‐carbohydrate diet group; data not provided when authors contacted